package com.java10_13_2;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;

public class CollectionDemo {
    public static void main(String[] args) {
        // 创建Collection集合对象
        Collection<Student> c = new ArrayList<Student>();

        // 创建学生对象
        Student s1 = new Student("张三", 30);
        Student s2 = new Student("李四", 40);
        Student s3 = new Student("王五", 25);

        // 把学生添加到集合
        c.add(s1);
        c.add(s2);
        c.add(s3);

//        System.out.println(c);
        // 遍历集合（迭代器方式）
        Iterator<Student> it = c.iterator();
        while(it.hasNext()) {
            Student s = it.next();
            System.out.println(s.getName() + "," + s.getAge());
        }
    }
}
